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authorDarius Augulis <augulis.darius@gmail.com>2009-03-25 05:23:51 -0400
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-04-06 10:23:26 -0400
commit504a3e72208fc6a65924426ff5693982590bccdc (patch)
tree5d827a04e872a510ebea235a638f9e98c0b6d1ed /drivers/mtd
parentd8877f191e35718ba11a4d46950131e74c40566c (diff)
[MTD] [NOR] Fixup for Numonyx M29W128 chips
Prevent NUMONYX M29W128G memories from using write buffer, because it doesn't work properly. Signed-off-by: Darius Augulis <augulis.darius@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0002.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 94bb61e19047..61ea833e0908 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -282,6 +282,16 @@ static void fixup_s29gl032n_sectors(struct mtd_info *mtd, void *param)
282 } 282 }
283} 283}
284 284
285static void fixup_M29W128G_write_buffer(struct mtd_info *mtd, void *param)
286{
287 struct map_info *map = mtd->priv;
288 struct cfi_private *cfi = map->fldrv_priv;
289 if (cfi->cfiq->BufWriteTimeoutTyp) {
290 pr_warning("Don't use write buffer on ST flash M29W128G\n");
291 cfi->cfiq->BufWriteTimeoutTyp = 0;
292 }
293}
294
285static struct cfi_fixup cfi_fixup_table[] = { 295static struct cfi_fixup cfi_fixup_table[] = {
286 { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL }, 296 { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
287#ifdef AMD_BOOTLOC_BUG 297#ifdef AMD_BOOTLOC_BUG
@@ -298,6 +308,7 @@ static struct cfi_fixup cfi_fixup_table[] = {
298 { CFI_MFR_AMD, 0x1301, fixup_s29gl064n_sectors, NULL, }, 308 { CFI_MFR_AMD, 0x1301, fixup_s29gl064n_sectors, NULL, },
299 { CFI_MFR_AMD, 0x1a00, fixup_s29gl032n_sectors, NULL, }, 309 { CFI_MFR_AMD, 0x1a00, fixup_s29gl032n_sectors, NULL, },
300 { CFI_MFR_AMD, 0x1a01, fixup_s29gl032n_sectors, NULL, }, 310 { CFI_MFR_AMD, 0x1a01, fixup_s29gl032n_sectors, NULL, },
311 { CFI_MFR_ST, 0x227E, fixup_M29W128G_write_buffer, NULL, },
301#if !FORCE_WORD_WRITE 312#if !FORCE_WORD_WRITE
302 { CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, }, 313 { CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
303#endif 314#endif